UPSC 2001 › Geography › Physical Geography & Geomorphology

Identify the correct order of the processes of soil erosion from the following:

Consider the following statements:

I. Most magmas are a combination of liquid, solid and gas. II. Water vapour and carbon dioxide are the principal gases dissolved in a magma. III. Basaltic magma is hotter than the silicic magma.

Which of these statements are correct?

Consider the following statements regarding earthquakes: I. The intensity of an earthquake is measured on the Mercalli scale. II. The magnitude of an earthquake is a measure of energy released. III. Earthquake magnitudes are based on direct measurements of the amplitude of seismic waves. IV. In the Richter scale, each whole number demonstrates a hundred-fold increase in the amount of energy released.

Which of these statements are correct?

Consider the following statements made about the sedimentary rocks: I. Sedimentary rocks are formed at Earth’s surface by the hydrological system. II. The formation of sedimentary rocks involves the weathering of pre-existing rocks. III. Sedimentary rocks contain fossils. IV. Sedimentary rocks typically occur in layers.

Which of these statements are correct?

Volcanic eruptions do not occur in the

Quartzite is metamorphosed from